CVE-2024-50657Public exploit

Passcode bypass via runtime method replacement

Published Nov 22, 2024 · Updated Nov 27, 2024

Authentication bypass in ownCloud Android App 4.3.1 allows physically proximate attackers to access passcode-protected app content. A Frida hook replaces PassCodeViewModel.checkPassCodeIsValid so every supplied passcode returns true instead of undergoing validation. The published proof of concept requires Frida access to the running app; successful bypass exposes files and actions guarded only by the app passcode.

CVSS severity6.8
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in ownCloud Android App 4.3.1 allows physically proximate attackers to access passcode-protected app content. A Frida hook replaces PassCodeViewModel.checkPassCodeIsValid so every supplied passcode returns true instead of undergoing validation. The published proof of concept requires Frida access to the running app; successful bypass exposes files and actions guarded only by the app passcode.

The record

CVE
CVE-2024-50657
Published
Nov 22, 2024
Updated
Nov 27, 2024
Vendor
ownCloud
Product
ownCloud Android App
Classifications
CWE-276, T1556
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.3.1

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

ownCloud · ownCloud Android Appversion=4.3.1

Published CVSS scores

6.8CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1556Modify Authentication Process

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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